Variability-selected quasars behind the Small Magellanic Cloud Academic Article

abstract

• We present follow-up spectroscopic observations of quasar candidates in the Small Magellanic Cloud selected by L. Eyer from the OGLE database. Of 12 observed objects identified as "QSO candidates," five are confirmed as quasars, with emission redshifts ranging from 0.28 to 2.16. Two of these quasars were also recently identified independently in the MACHO database by Geha et al. We discuss the prospects of using the variability-based selection technique for quasar searches behind other dense stellar fields. An additional criterion utilizing a color-color diagram should reduce the number of stars in the candidate lists.

published proceedings

• ASTRONOMICAL JOURNAL

author list (cited authors)

• Dobrzycki, A., Macri, L. M., Stanek, K. Z., & Groot, P. J.

citation count

• 31

complete list of authors

• Dobrzycki, A||Macri, LM||Stanek, KZ||Groot, PJ

publication date

• March 2003

publisher

• American Astronomical Society  Publisher

published in

• Astronomical Journal  Journal

keywords

• Magellanic Clouds
• Quasars : General

Digital Object Identifier (DOI)

• 10.1086/346144

start page

• 1330

end page

• 1335

volume

• 125

issue

• 3

URL

• http://dx.doi.org/10.1086/346144